CN216572804U

CN216572804U - Equipment for preparing nano-grade material slurry

Info

Publication number: CN216572804U
Application number: CN202122862173.2U
Authority: CN
Inventors: 黄婷
Original assignee: Suzhou Ika Complete Equipment Co ltd
Current assignee: Suzhou Ika Complete Equipment Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-05-24
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a preparation device for nano-scale material slurry, which comprises a feeding spiral sheet, wherein one side of the bottom of the feeding spiral sheet is connected with a left-handed dispersible tablet in a sliding way, one side of the left-handed dispersible tablet is connected with a right-handed dispersible tablet in a sliding way, a powder-liquid mixing outer cavity is arranged on the periphery of the right-handed dispersible tablet, a powder-liquid dispersing outer cavity is arranged on the periphery of the bottom of the powder-liquid mixing outer cavity, a powder baffle valve is arranged on the periphery of the right side of the bottom of the feeding spiral sheet, a top cover and a fixed bolt are arranged on the top of the feeding spiral sheet, powder is vertically fed into a premixing chamber from the top through a chute, a dry material area and a wet material premixing chamber are separated by a feeding screw rod, liquid phase and solid phase are mixed in a certain proportion in the premixing chamber, and the mixed liquid immediately enters a rotor and stator device with high shear effect to be dispersed when leaving the premixing chamber, so that high-quality and non-caking nano-scale mixed material is generated, and the solid-liquid mixed material is simply and liquid mixed, the whole-closed type mixing and dispersing has no secondary pollution.

Description

Equipment for preparing nano-grade material slurry

Technical Field

The utility model relates to the technical field of preparation of nano-grade material slurry, in particular to equipment for preparing nano-grade material slurry.

Background

In response to the requirements of the market on the quality and performance of the battery, in the production process of the battery, the energy density, the charge-discharge rate performance, the cycle service life and the like of the battery are improved; the battery raw material system is required to be more and more refined, the nanometer material is added in an additive mode to improve the battery performance in the past, but the market demand is difficult to meet, the main material of the new generation of high-energy high-rate battery at present adopts nanometer material and superfine powder, and the prior battery slurry preparation equipment comprises the following components: the stirring of instruments such as double-planet stirring, screw type and the like can not meet the process requirements.

In order to realize the uniformity of mixing of nano-grade materials, the prior art mainly adopts batch type and continuous type processes, wherein the batch type pulping process is a typical device which is a double-planet stirrer; continuous pulping process, generally adopt double screw pulping process, for traditional equipment, double planet stirring pulping mode shortcoming double planet stirring mode easily forms the dead angle, lead to nanometer material can't the homodisperse, form the agglomerate, the energy consumption is high, the equipment is big more the homogeneity and the uniformity of thick liquids can't guarantee more, double screw stirring pulping mode, powder and liquid after will measuring drop into the different positions of screw rod respectively, accomplish powder-liquid mixture in the different regions of screw rod, the structure is complicated, the screw rod wearing and tearing are big, it is troublesome to trade the material system, lead to material secondary pollution easily, nanometer dispersion is difficult, be fit for large-scale production, laboratory or small batch can be through the reluctant realization of long-time double planet stirring.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a nano-scale material slurry preparation apparatus to solve the above-mentioned problems of the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a be used for nanometer material thick liquids preparation facilities, includes the feed spiral piece, one side sliding connection of the bottom of feed spiral piece has left-handed dispersion piece, one side sliding connection of left-handed dispersion piece has right-handed dispersion piece, the periphery of right-handed dispersion piece is provided with powder liquid and mixes the exocoel, the powder liquid is mixed the bottom periphery of exocoel and is provided with powder liquid and disperses the exocoel, the right side periphery of feed spiral piece bottom is provided with powder baffling valve, the top of feed spiral piece is provided with top cap and gim peg.

Preferably, a powder-liquid mixing inner cavity is arranged at the bottom of the powder flow blocking valve, and a powder-liquid dispersing wheel is arranged at the bottom of the powder-liquid mixing inner cavity.

Preferably, one side of the bottom of the powder-liquid dispersion wheel is provided with a powder-liquid output wheel, and one side of the bottom of the powder-liquid output wheel is provided with a high-speed rotating main shaft.

Preferably, one side of the bottom of the high-speed rotating main shaft is provided with a shaft sleeve, and one side of the shaft sleeve is provided with a shaft seal.

Preferably, a balance tank is arranged on the right side of the periphery of the feeding spiral piece, a cooling pipe is arranged at the bottom of the balance tank, and a machine seal cooling pipe is arranged at the back of the cooling pipe.

Preferably, a double-end-face machine seal is arranged on one side of the machine seal cooling pipe, and a liquid storage tank is arranged on the right side of the periphery of the balance tank.

Preferably, the bottom of the feeding spiral piece is provided with a transmission pipe, the bottom of the transmission pipe is provided with a hydraulic tank, and the hydraulic tank is fixedly connected with the periphery of the bottom of the feeding spiral piece through a fixing block.

Preferably, the bottom of the hydraulic tank is provided with a fixed upper rod and a fixed lower rod which are fixedly connected with the fixed block, the bottom of the inner cavity of the feeding spiral piece is provided with an air pipe, and one side of the air pipe is provided with a pneumatic valve.

Compared with the prior art, the utility model has the beneficial effects that:

1. the equipment for preparing the nano-grade material slurry can solve the problem of a nano-grade material by matching the machine with the powder stocker, wherein the machine is provided with a stator and rotor structure driven by a motor, has a large specific surface area, is difficult to disperse and easy to agglomerate, and can ensure that the viscosity of a liquid phase can exceed 10 ten thousand mPa.s.

2. The equipment for preparing the nano-scale material slurry can enable the addition amount of the powder material to be more than eighty percent by feeding a positive displacement pump or a pressurized feeding system into a liquid phase through an upper inlet, injecting and distributing the liquid into a coaxial drum wheel of a machine, and enabling the liquid to enter a premixing chamber through a plurality of holes.

3. The equipment for preparing the nano-scale material slurry vertically feeds powder into a premixing chamber from the top through a chute, a dry material area and a wet material premixing chamber are separated by a feed screw, a liquid phase and a solid phase are mixed in the premixing chamber according to a certain proportion, and the mixed liquid immediately enters a rotor and stator device with high shear action to be dispersed when leaving the premixing chamber, so that the high-quality and non-caking nano-scale mixed material is generated.

4. According to the equipment for preparing the nano-grade material slurry, powder and liquid are mixed and then enter the dispersion cavity, and stable and high-quality slurry is formed through high-speed rotating and shearing of the stator and the rotor, so that the equipment is high in mixing and dispersing efficiency, the equipment integrates mixing, dispersing and homogenizing, once mixing is completed, stable slurry is formed, the solid-liquid mixed material is convenient to replace, and the equipment is fully-closed to mix and disperse and has no secondary pollution.

Drawings

FIG. 1 is a schematic structural diagram of a powder-liquid mixing and dispersing apparatus according to the present invention;

FIG. 2 is a schematic structural diagram of a stator/rotor structure according to the present invention;

fig. 3 is a schematic view of the structure of the top cover of the present invention.

In the figure: 1. a top cover; 2. a fixing bolt; 100. a liquid storage tank; 402. rotating the main shaft at a high speed; 408. A shaft sleeve; 414. shaft sealing; 708. a powder-liquid mixing outer cavity; 710. a powder-liquid dispersion outer cavity; 716. a powder flow blocking valve; 802. feeding a spiral sheet; 804. levorotatory dispersible tablet; 806. d, dispersing tablets; 902. a powder-liquid mixing inner cavity; 1004. a powder-liquid dispersion wheel; 1006. a powder and liquid output wheel; 1302. a mechanical seal cooling tube; 1310. A balancing tank; 1318. a cooling tube; 1510. a hydraulic tank; 1520. a fixed block; 1530. fixing the upper rod; 1550. fixing the lower rod; 1560. a conveying pipe; 1570. an air tube; 1580. a pneumatic valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-3, the present invention provides a technical solution: a preparation device for nano-scale material slurry comprises a feeding spiral piece 802, wherein one side of the bottom of the feeding spiral piece 802 is connected with a left-handed dispersible tablet 804 in a sliding manner, one side of the left-handed dispersible tablet 804 is connected with a right-handed dispersible tablet 806 in a sliding manner, a powder-liquid mixing outer cavity 708 is arranged on the periphery of the right-handed dispersible tablet 806, a powder-liquid dispersing outer cavity 710 is arranged on the periphery of the bottom of the powder-liquid mixing outer cavity 708, a powder baffling valve 716 is arranged on the periphery of the right side of the bottom of the feeding spiral piece 802, and a top cover 1 and a fixed bolt 2 are arranged on the top of the feeding spiral piece 802.

The powder and liquid mixing cavity 902 is arranged at the bottom of the powder baffle valve 716, and the powder and liquid dispersing wheel 1004 is arranged at the bottom of the powder and liquid mixing cavity 902.

Wherein, a powder-liquid output wheel 1006 is arranged at one side of the bottom of the powder-liquid dispersion wheel 1004, and a high-speed rotating main shaft 402 is arranged at one side of the bottom of the powder-liquid output wheel 1006.

In this embodiment, the nano-scale material slurrying system comprises a motor-driven machine with a stator-rotor structure, a powder storage device and a liquid storage tank 100, by feeding a positive displacement pump, or from a pressurized feed system, the liquid phase through the upper inlet, the liquid is injected, distributed to the coaxial drums of the machine, through a plurality of holes into a premixing chamber, vertically feeding the powder into the premixing chamber from the top by a material distribution device (a spiral feeder, a rotary feeder and the like) through a chute, separating a dry material zone and a wet material premixing chamber by a feed screw, mixing a liquid phase and a solid phase in the premixing chamber according to a certain proportion, the mixed liquid immediately enters a rotor stator device with high shearing action to be dispersed when leaving the premixing chamber, so as to generate high-quality and non-caking nano-scale mixed materials, the mixed products are discharged from a liquid outlet at the lowest point in the device under the action of gravity, and the addition amount of the powder materials can be more than eighty percent.

Wherein, a shaft sleeve 408 is arranged at one side of the bottom of the high-speed rotating main shaft 402, and a shaft seal 414 is arranged at one side of the shaft sleeve 408.

Wherein, a balance tank 1310 is arranged at the right side of the periphery of the feeding spiral piece 802, a cooling pipe is arranged at the bottom of the balance tank 1310, and a mechanical seal cooling pipe 1302 is arranged at the back of the cooling pipe 1318.

In this embodiment, the powder liquid mixing machine of core, the stator that contains the rotor of vertical setting and is located the rotor outside, the rotor is the different structural design of three-layer, powder feeding chamber on the top, side liquid pan feeding (liquid pan feeding mouth can set up a plurality of income liquid mouths), the powder liquid gets into the dispersion chamber after mixing, through deciding the high-speed rotatory shearing of rotor, form stable, high-quality thick liquids, it is efficient to make this equipment mix the dispersion, equipment collection mixes, dispersion, homogeneity in an organic whole, once mix the completion, form stable thick liquids.

Wherein, a double-end-face machine seal is arranged on one side of the machine seal cooling pipe 1302, and the liquid storage tank 100 is arranged on the right side of the periphery of the balance tank 1310.

Wherein, the bottom of the feeding spiral piece 802 is provided with a transmission pipe 1560, the bottom of the transmission pipe 1560 is provided with a hydraulic tank 1510, and the hydraulic tank 1510 is fixedly connected with the periphery of the bottom of the feeding spiral piece 802 through a fixed block 1520.

Wherein, the bottom of hydraulic pressure jar 1510 is provided with fixed upper boom 1530 and fixed lower boom 1550 and fixed block 1520 fixed connection, and the bottom of feeding spiral shell 802 inner chamber is provided with trachea 1570, and one side of trachea 1570 is provided with pneumatic valve 1580.

The working principle is as follows: the nano-scale material slurrying system comprises a motor-driven stator-rotor structured machine, a powder storage tank and a liquid storage tank 100, wherein a positive displacement pump or a pressurized feeding system is used for feeding liquid phase through an upper inlet. The liquid is injected, distributed to the coaxial drums of the machine, entering the premixing chamber through a plurality of holes. The powder is vertically fed into a premixing chamber from the top by a chute by using a material mixing device (a spiral feeder, a rotary feeder and the like), a dry material area and a wet material premixing chamber are separated by a feeding screw, a liquid phase and a solid phase are mixed in the premixing chamber according to a certain proportion, the mixed liquid immediately enters a rotor stator device with high shear action to be dispersed when leaving the premixing chamber, high-quality and non-caking nanometer mixed materials are generated, the mixed products are discharged from a liquid outlet at the lowest point in the device under the action of gravity, the addition amount of the powder materials can be more than eighty percent, a powder-liquid mixing machine of a core comprises a vertically arranged rotor and a stator positioned outside the rotor, the rotor is designed into three layers of different structures, the uppermost powder feeding cavity is provided with a side liquid feeding port (the liquid feeding port can be provided with a plurality of liquid inlet ports), and the powder and the liquid enter a dispersing cavity after being mixed, through the high-speed rotatory shearing of stator and rotor, form stable, high-quality thick liquids, make this equipment mix dispersion efficiency high, equipment collection mixes, dispersion, homogeneity in an organic whole, once mixes the completion, forms stable thick liquids.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An apparatus for preparing a slurry of nanoscale material, comprising a feeding screw (802), characterized in that: one side sliding connection of the bottom of feed spiral piece (802) has left-handed dispersion piece (804), one side sliding connection of left-handed dispersion piece (804) has right-handed dispersion piece (806), the periphery of right-handed dispersion piece (806) is provided with powder liquid and mixes exocoel (708), the bottom periphery that powder liquid mixes exocoel (708) is provided with powder liquid dispersion exocoel (710), the right side periphery of feed spiral piece (802) bottom is provided with powder baffling valve (716), the top of feed spiral piece (802) is provided with top cap (1) and gim peg (2).

2. The apparatus for preparing a nano-scale material slurry according to claim 1, wherein: the bottom of the powder baffle valve (716) is provided with a powder-liquid mixing inner cavity (902), and the bottom of the powder-liquid mixing inner cavity (902) is provided with a powder-liquid dispersing wheel (1004).

3. The apparatus for preparing a nano-scale material slurry according to claim 2, wherein: one side of the bottom of the powder-liquid dispersion wheel (1004) is provided with a powder-liquid output wheel (1006), and one side of the bottom of the powder-liquid output wheel (1006) is provided with a high-speed rotating main shaft (402).

4. The apparatus for preparing a nano-scale material slurry according to claim 3, wherein: a shaft sleeve (408) is arranged on one side of the bottom of the high-speed rotating main shaft (402), and a shaft seal (414) is arranged on one side of the shaft sleeve (408).

5. The apparatus for preparing a nano-scale material slurry according to claim 1, wherein: a balance tank (1310) is arranged on the right side of the periphery of the feeding spiral sheet (802), a cooling pipe (1318) is arranged at the bottom of the balance tank (1310), and a mechanical seal cooling pipe (1302) is arranged on the back of the cooling pipe (1318).

6. The apparatus for preparing a nano-scale material slurry according to claim 5, wherein: a double-end-face machine seal (728) is arranged on one side of the machine seal cooling pipe (1302), and a liquid storage tank (100) is arranged on the right side of the periphery of the balance tank (1310).

7. The apparatus for preparing a nano-scale material slurry according to claim 1, wherein: the bottom of the feeding spiral piece (802) is provided with a transmission pipe (1560), the bottom of the transmission pipe (1560) is provided with a hydraulic tank (1510), and the hydraulic tank (1510) is fixedly connected with the periphery of the bottom of the feeding spiral piece (802) through a fixed block (1520).

8. The apparatus for preparing a nano-scale material slurry according to claim 7, wherein: the bottom of the hydraulic tank (1510) is provided with a fixed upper rod (1530) and a fixed lower rod (1550) which are fixedly connected with a fixed block (1520), the bottom of the inner cavity of the feeding spiral piece (802) is provided with an air pipe (1570), and one side of the air pipe (1570) is provided with a pneumatic valve (1580).